Windows XP and RAM 3.5GB+
I have a Dell desktop that had 2GB of Ram in it, but XP's control panel -> system setting said only 1.75 GB. (This is 32 bit XP.)
I then installed another 2 GB, and now XP says I'm at 3.23 GB. I'm sure my graphics card is using shared memory and that might explain some of it, but where can I check that setting to make sure?